摘要:
1010: The Almost Lucky NumbersTime Limit:1 SecMemory Limit:128 MBSubmit:16Solved:11[Submit][Status][Web Board]DescriptionJohn and Brus believe that the digits 4 and 7 are lucky and all others are not. According to them, an almost lucky number is a number that contains at most one non-lucky digit in 阅读全文